JP2014095388A - Manufacturing method for vibration-proof device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration-proof device capable of improving assembly workability while reducing backlash between an opening and a movable plate as much as possible.SOLUTION: A manufacturing method for a vibration-proof device includes a partition member formation step of forming a partition member by arranging a movable plate 18 in an accommodation part 29 of a partition member body 5. In this partition member formation step, the movable plate 18 is arranged in the accommodation part 29 by peeling each of sheet bodies 52a and 52b off from each other on one end 51a side of an attaching jig 51 comprising by laminating a pair of sheet bodies 52a and 52b with each other, by sandwiching the movable plate 18 between the pair of sheet bodies 52a and 52b, and in this state, by inserting the other end 51b side of the attaching jig 51 into one of a pair of openings 28a and 28b of the partition member body 5, and by pulling the other end 51b side from the other of the pair of openings 28a and 28b.

Description

  The present invention relates to a method for manufacturing a vibration isolator.

  As a vibration isolator that is applied to automobiles, industrial machines, etc., and absorbs and attenuates vibrations of a vibration generating part such as an engine, for example, a cylindrical shape that is conventionally connected to one of a vibration generating part and a vibration receiving part A first mounting member, a second mounting member connected to the other, an elastic body that elastically connects the first mounting member and the second mounting member, and a first mounting member disposed inside the first mounting member. A partition member that divides a liquid chamber formed inside the member into a main liquid chamber on one side in the axial direction and a sub liquid chamber on the other side in the axial direction, the elastic body being a part of the wall surface, and in the partition member There is known a vibration isolator including a movable plate accommodated therein.

  The partition member has a first partition plate and a second partition plate arranged so as to face each other, an outer peripheral portion of the first partition plate, and a side wall connecting the outer peripheral portion of the second partition plate. ing. And the inside surrounded by these 1st partition plates, 2nd partition plates, and a side wall is comprised as an accommodating part which accommodates a movable plate. Moreover, the opening part which connects the inside and outside of a partition member is formed in a side wall, The movable plate can be accommodated in an accommodating part via this opening part. Furthermore, the 1st partition plate and the 2nd partition plate are each formed with the communication hole which connects a main liquid chamber and a subliquid chamber, and the movable plate has interrupted this communication hole.

  Under such a configuration, when vibration having a minute amplitude is applied to the first mounting member or the second mounting member, the movable plate is moved between the inner surface of the first partition plate and the inner surface of the second partition plate. The vibration is absorbed or attenuated by displacement or deformation (see, for example, Patent Document 1).

JP 2009-41761 A

By the way, in the above-mentioned prior art, in order to obtain a desired vibration damping effect by appropriately displacing or deforming the movable plate, or to suppress the generation of abnormal noise during operation, It is effective to reduce the play between the part and the movable plate as much as possible.
However, if the backlash between the opening and the movable plate is reduced as much as possible, there is a problem that it becomes difficult to pass the movable plate through the opening and the assembly workability is lowered.

  Therefore, the present invention has been made in view of the circumstances described above, and provides a method for manufacturing a vibration isolator capable of improving assembly workability while reducing the backlash between the opening and the movable plate as much as possible. It is to provide.

  In order to solve the above problems, a method of manufacturing a vibration isolator according to the present invention is connected to a cylindrical outer member connected to one of a vibration generating unit and a vibration receiving unit, and to the other. An inner member, an elastic body that elastically connects the outer member and the inner member, a liquid chamber of the outer member, a main liquid chamber on one side and a liquid chamber on the other side of which the elastic body is a part of a wall surface. A partition member partitioned into a secondary liquid chamber, and the partition member is disposed in the partition member main body in which a storage portion is formed, and in the storage portion, and pressure between the main liquid chamber and the secondary liquid chamber A liquid-filled type including a movable plate that is displaced or deformed according to a difference, and a pair of openings communicating with the housing portion are formed at portions facing each other in the radial direction of the outer peripheral surface of the partition member body A method of manufacturing an anti-vibration device according to claim 1, wherein the outer member and the inner portion And a vibration isolator main body creating step for creating a vibration isolator main body connected by the elastic body, and a partition member creating step for creating the partition member by arranging a movable plate in the housing portion of the partition member main body. A partition member assembling step for assembling the partition member to the vibration isolator main body, and a filling step for filling the liquid chamber of the outer member with a liquid, and the partition member creating step includes a pair of sheet bodies. Each sheet body on one end side of the mounting jig that is overlapped with each other is peeled from each other, the movable plate is sandwiched between the pair of sheet bodies, and in this state, of the pair of openings of the partition member body On one side, the other end side of the mounting jig is inserted, and the other end side is pulled out from the other of the pair of openings, whereby the movable plate is arranged in the accommodating portion.

  By setting it as such a method, a pair of sheet | seat becomes a guide and a movable plate is smoothly guided to one of a pair of opening parts of a partition member main body. Furthermore, by pulling out the pair of sheets from the other of the pair of openings, the movable plate can be easily pulled into the housing portion. For this reason, assembly workability | operativity can be improved, reducing the backlash between an opening part and a movable plate as much as possible.

  In the method for manufacturing a vibration isolator according to the present invention, the pair of sheet bodies are arranged so that the friction coefficient of the inner surface where the pair of sheet bodies overlap each other is larger than the friction coefficient of the outer surface opposite to the inner surface. It is formed.

  By adopting such a method, when the movable plate is disposed in the housing portion, the friction coefficient between the housing portion and the movable plate becomes larger than the friction coefficient between the pair of sheet bodies and the movable plate. Only the mounting jig can be pulled out from the partition member main body. For this reason, it becomes possible to arrange | position a movable plate to an accommodating part by easy operation | work.

  In the vibration isolation device manufacturing method according to the present invention, in the partition member creating step, a part of the movable plate is sandwiched between the pair of sheet bodies, and a part other than the part is exposed, The movable plate is pulled into the housing portion using the mounting jig.

  By adopting such a method, the coefficient of friction between the accommodating portion and the movable plate when the movable plate is arranged in the accommodating portion is more sure than the coefficient of friction between the pair of sheet bodies and the movable plate. Can be bigger. For this reason, it becomes possible to arrange | position a movable plate to an accommodating part easily and reliably.

  According to the present invention, the pair of sheets serves as a guide, and the movable plate is smoothly guided to one of the pair of openings of the partition member body. Furthermore, by pulling out the pair of sheets from the other of the pair of openings, the movable plate can be easily pulled into the housing portion. For this reason, assembly workability | operativity can be improved, reducing the backlash between an opening part and a movable plate as much as possible.

It is front sectional drawing of the vibration isolator in embodiment of this invention. It is a perspective view of the partition member in the embodiment of the present invention. It is a top view of the partition member in the embodiment of the present invention. It is sectional drawing which follows the AA line of FIG. It is a rear view of the partition member in embodiment of this invention. It is a perspective view of the movable plate in the embodiment of the present invention. It is operation | work explanatory drawing of the partition member preparation process in embodiment of this invention, Comprising: (a)-(c) shows the behavior of a movable plate and an attachment jig, respectively.

(Vibration isolator)
Next, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front sectional view of a vibration isolator according to the present embodiment.
As shown in the figure, the vibration isolator 10 includes a cylindrical first mounting member 11 connected to one of a vibration generating unit and a vibration receiving unit, and a second mounting member 12 connected to the other. An elastic body 13 that elastically connects the first mounting member 11 and the second mounting member 12, and a liquid chamber 16 that is disposed inside the first mounting member 11 and formed inside the first mounting member 11. The partition member 15 is provided to partition the main liquid chamber 16a and the sub liquid chamber 16b.

Each of these members is provided coaxially with the central axis O. Hereinafter, a direction along the central axis O is referred to as an axial direction, a direction orthogonal to the central axis O is referred to as a radial direction, and a direction around the central axis O is referred to as a circumferential direction.
Here, the liquid chamber 16 is divided into the main liquid chamber 16a on one side in the axial direction (upper side in FIG. 1) and the other side in the axial direction (in FIG. 1) by the partition member 15. It is divided into a sub-liquid chamber 16b on the lower side.

The main liquid chamber 16a and the sub liquid chamber 16b are filled with, for example, ethylene glycol, water, silicone oil or the like.
The vibration isolator 10 is mounted on, for example, an automobile, and the second mounting member 12 is connected to an engine (not shown) as a vibration generating unit, while the first mounting member 11 is a vibration receiving unit via a bracket (not shown). By being connected to the vehicle body, transmission of engine vibration to the vehicle body can be suppressed.

The first mounting member 11 connects the first cylinder part 11a formed on one side in the axial direction, the second cylinder part 11b formed on the other side in the axial direction, and the first cylinder part 11a and the second cylinder part 11b. And a stepped portion 11c. And the 1st cylinder part 11a, the 2nd cylinder part 11b, and the step part 11c are arrange | positioned coaxially with the central axis O, and are integrally formed.
Further, the second mounting member 12 is disposed on the one axial side of the first cylindrical member 11 a of the first mounting member 11. Then, the end on one axial side of the first mounting member 11 is closed in a liquid-tight state by the elastic body 13, and the end on the other axial side in the first mounting member 11 is in a liquid-tight state by the diaphragm 14. The liquid can be sealed inside the first mounting member 11 by being closed at the inside.

  The elastic body 13 is a member made of, for example, a rubber material or the like, protrudes from one end in the axial direction of the first mounting member 11 toward one side in the axial direction, and is gradually reduced in diameter toward the one side in the axial direction. And a cover portion 13b extending from the main body portion 13a along the inner peripheral surface of the first mounting member 11 toward the other side in the axial direction. And these main-body parts 13a and the coating | coated part 13b are integrally formed. The covering portion 13b is vulcanized and bonded to the inner peripheral surface of the first mounting member 11, and the inner peripheral surface of the first mounting member 11 is covered with the elastic body 13 over the entire region.

(Partition member)
2 is a perspective view of the partition member in the present embodiment, FIG. 3 is a plan view (top view) of the partition member in the present embodiment, FIG. 4 is a cross-sectional view taken along the line AA in FIG. These are the rear views of a partition member.
As shown in FIG. 2, the partition member 15 disposed inside the first mounting member 11 has a substantially disc-shaped partition member body 5. The partition member main body 5 includes a first partition plate 21 and a second partition plate 22 that are arranged to face each other. The 1st partition plate 21 and the 2nd partition plate 22 are substantially disk-shaped members, and are integrally formed, for example with the aluminum alloy. In addition, you may form the partition member main body 5 with resin.

As shown in FIG. 1, the outer surface 21b facing the one axial side of the first partition plate 21 faces the main liquid chamber 16a, and the first partition plate 21 is a part of the partition wall of the main liquid chamber 16a. Is forming.
The outer surface 22b of the second partition plate 22 facing the other side in the axial direction faces the sub liquid chamber 16b side, and the second partition plate 22 forms a part of the partition wall of the sub liquid chamber 16b. Yes.

  As shown in FIG. 4, the first partition plate 21 and the second partition plate 22 are connected by a peripheral wall 27. A storage portion 29 is defined between the first partition plate 21 and the second partition plate 22. The accommodating portion 29 is defined by being surrounded by the inner surface 21 a facing the other axial side of the first partition plate 21, the inner surface 22 a facing the one axial direction of the second partition plate 22, and the peripheral wall 27. Yes. The accommodating portion 29 accommodates a movable plate 18 described later.

In addition, as shown in FIG. 2, openings 28 a and 28 b communicating with the accommodating portion 29 are formed in portions of the peripheral wall 27 that are opposed to each other in the radial direction, and the pair of openings 28 a and 28 b. Through this, the movable plate 18 can be inserted into the accommodating portion 29.
Here, the opening height H1 of the pair of openings 28a and 28b is the axial height of the accommodating portion 29, that is, the distance H2 between the first partition plate 21 and the second partition plate 22 (see FIG. 1). Are set to be the same. Thereby, when the movable plate 18 is inserted into the accommodating portion 29 through the openings 28a and 28b, the movable plate 18 can be reliably prevented from being caught by the edges of the openings 28a and 28b and being damaged. Depending on the specifications of the vibration isolator 10, the distance H2 between the first partition plate 21 and the second partition plate 22 can be made larger than the opening height H1 of the openings 28a and 28b. .

(First communication hole)
The first partition plate 21 is formed with a first communication hole 23 that penetrates the first partition plate 21 in the axial direction. The container 29 and the main liquid chamber 16a are communicated with each other through the first communication hole 23 (see FIG. 1).
As shown in FIG. 3, the first communication hole 23 is formed in a circular shape in plan view.
On the inner peripheral surface 23a of the first communication hole 23, a plurality of ribs 23b (four in the present embodiment) project from the inner side in the radial direction. Each rib 23b is arranged at substantially equal intervals in the circumferential direction. These ribs 23b prevent the movable plate 18 from coming out of the accommodating portion 29 toward the main liquid chamber 16a. Further, the protruding amount of the rib 23b toward the inner side in the radial direction from the inner peripheral surface 23a of the first communication hole 23 is smaller than the radius of the inner peripheral surface 23a of the first communication hole 23. In the example, it is about half the radius of the inner peripheral surface 23 a of the first communication hole 23.

(Second communication hole)
As shown in FIG. 4, the second partition plate 22 is formed with a second communication hole 24 penetrating the second partition plate 22 in the axial direction. The container 29 and the auxiliary liquid chamber 16b communicate with each other through the second communication hole 24 (see FIG. 1). As shown in FIG. 5, the second communication hole 24 is formed in a circular shape in plan view.
On the inner peripheral surface 24 a of the second communication hole 24, a bridging portion 24 b is provided so as to connect portions that are opposed to each other in the radial direction on the inner peripheral surface 24 a. In the example shown in the figure, two bridging portions 24b are disposed with a 90 ° position shifted from the central axis O. Furthermore, the size, that is, the width in the circumferential direction of the bridging portion 24b is wider than the width of the rib 23b. The bridging portion 24b has a larger contact area with the movable plate 18 than the rib 23b.

  In the illustrated example, as shown in FIG. 2, the partition member main body 5 has a first communication hole 23, a second communication hole 24, and a housing portion as a passage communicating the main liquid chamber 16 a and the sub liquid chamber 16 b. Apart from the passage through 29, an orifice passage 19 is formed.

(Movable plate)
FIG. 6 is a perspective view of the movable plate.
As shown in the figure, the movable plate 18 is formed of, for example, a rubber material. Further, the movable plate 18 is formed in a rectangular shape in plan view and is sized to cover the first communication hole 23 and the second communication hole 24 over the entire area.
Further, the wall thickness T1 of the outer peripheral edge portion 18a of the movable plate 18 is set to be thicker than the wall thickness T2 of the inner portion 18c located inside the outer peripheral edge portion 18a. As a result, the bending rigidity of the movable plate 18 is ensured, the hydraulic pressure fluctuates in the main liquid chamber 16a, and the movable plate 18 is displaced or deformed to the main liquid chamber 16a side through the first communication hole 23. However, the movable plate 18 is prevented from coming out of the first communication hole 23 toward the main liquid chamber 16a.

The thickness T1 of the outer peripheral edge 18a of the movable plate 18 is substantially equal to the opening height H1 of the opening 28 of the partition member body 5 and the distance H2 between the first partition plate 21 and the second partition plate 22. It is set to be the same or slightly thicker than the opening height H1 and the distance H2. More specifically, the thickness T1 is set to be about 0.1 mm to 0.5 mm thicker than the opening height H1 and the distance H2. For this reason, the outer peripheral edge portion 18 a of the movable plate 18 contacts the inner surface 21 a of the first partition plate 21 and the inner surface 22 a of the second partition plate 22. Thereby, it is possible to prevent the movable plate 18 from rattling in the partition member body 5.
Furthermore, a plurality of spherical convex portions 18 b are formed on the inner portion 18 c of the movable plate 18. The protruding height of the convex portion 18b is set to a height at which the apex of the convex portion 18b and the outer peripheral edge portion 18a are located on substantially the same plane.

(Manufacturing method of vibration isolator)
Next, a method for manufacturing the vibration isolator 10 will be described.
First, the anti-vibration device main body creating step of creating the anti-vibration device main body 20 by integrating the first attachment member 11, the second attachment member 12, and the elastic body 13 is performed.
More specifically, first, the first mounting member 11 and the second mounting member 12 are respectively arranged at predetermined positions in a mold (not shown) for forming the elastic body 13 (vibration isolation device body mold). In addition, the adhesive is applied after the adhesive base treatment is performed on the inner peripheral surface of the first mounting member 11 and the outer peripheral surface of the second mounting member 12.

  Thereafter, the unvulcanized rubber is injected into the vibration isolator main body mold to mold the elastic body 13. Subsequently, the elastic body 13 is vulcanized by applying sulfur gas, pressure and heat to the elastic body 13, respectively. At this time, the elastic body 13 is bonded to the inner peripheral surface of the first mounting member 11 and the outer peripheral surface of the second mounting member 12, respectively, and the first mounting member 11, the second mounting member 12, and the elastic body 13 are integrated. The Thereafter, the vibration isolator main body 20 in which the first attachment member 11, the second attachment member 12, and the elastic body 13 are integrated is released from the vibration isolator main body mold.

Further, a partition member creating step is performed in which the movable plate 18 is accommodated in the partition member main body 5 to create the partition member 15. Hereinafter, based on FIG. 7A, FIG. 7B, and FIG. 7C, the partition member creation step will be specifically described.
FIG. 7 is an operation explanatory diagram of the partition member creation step, and (a) to (c) show the behavior of the movable plate and the mounting jig, respectively.
Here, as shown in FIG. 7A, when performing the partition member creation step, an attachment jig 51 for drawing the movable plate 18 into the accommodating portion 29 of the partition member main body 5 is used.

  The attachment jig 51 is formed by overlapping a pair of sheet bodies 52a and 52b with each other. The mounting jig 51 has a pair of openings 28a, 28a formed in the partition member body 5 in a state where the thickness direction of the sheet bodies 52a and 52b and the thickness direction of the partition member body 5 are matched. 28b and the accommodating part 29 are formed in the substantially rectangular shape by planar view in thickness direction so that insertion is possible.

  Further, the sheet bodies 52a and 52b are formed so that the friction coefficient of the inner surface where the pair of sheet bodies 52a and 52b overlap each other is larger than the friction coefficient of the outer surface opposite to the inner surface. Note that various materials such as cloth, paper, non-woven fabric, vinyl, and aluminum can be used as the pair of sheet bodies 52a and 52b. Something is good.

  As a method of using the mounting jig 51 formed in this way, first, the sheet bodies 52a and 52b on the longitudinal direction one end 51a side (the right side in FIG. 7A) of the mounting jig 51 are peeled off (FIG. 7). (See the two-dot chain line in (a)). Then, one end in the longitudinal direction of the movable plate 18 is inserted between the pair of peeled sheet bodies 52a and 52b, and the movable plate 18 is sandwiched between the pair of sheet bodies 52a and 52b (see arrow Y1 in FIG. 7A). ). As a result, the movable plate 18 has a longitudinal end 51a, which is a part of the movable plate 18, sandwiched by the mounting jig 51, and the portions other than the sandwiched portion are exposed.

  Further, in this state, the pair of sheet bodies 52a and 52b has the other end 51b in the longitudinal direction on the other end 51b side (the left side in FIG. 7) of the mounting jig 51 with respect to the portion sandwiching the movable plate 18. The taper part 53 is formed so that it may incline in the direction which overlaps gradually as it goes to. On the other hand, the other end 51b in the longitudinal direction of the mounting jig 51 is in a state where the pair of sheet bodies 52a and 52b are overlapped.

Next, the other longitudinal end 51 b of the mounting jig 51 is inserted into one opening 28 a of the pair of openings 28 a and 28 b formed in the partition member main body 5. Furthermore, the other end 51b in the longitudinal direction of the mounting jig 51 is placed in the accommodating portion 29 of the partition member body 5, and the other end 51b is pulled out from the other opening 28b of the pair of openings 28a and 28b.
At this time, the mounting jig 51 and the movable plate 18 are integrated with each other by a frictional force generated between the pair of sheet bodies 52a and 52b and the movable plate 18 held between them. Then, the movable plate 18 is drawn into one opening 28 a of the partition member body 5 so as to be pulled by the mounting jig 51.

  Further, as shown in FIG. 7B, when the movable plate 18 is pulled into the one opening 28 a by the mounting jig 51, the tapered portion 53 formed in the mounting jig 51 is one side of the partition member main body 5. It functions as a guide for guiding the movable plate 18 into the opening 28a. For this reason, the movable plate 18 is smoothly drawn into the one opening 28a.

Subsequently, as shown in FIG. 7C, when the other end 51 b of the mounting jig 51 is pulled out from the other opening 28 b of the partition member main body 5, the movable plate 18 is completely in the accommodating portion 29 of the partition member main body 5. Be contained.
At this time, friction between the movable plate 18 and the inner surface 21a of the first partition plate 21 and the inner surface 22a of the second partition plate 22 is caused in the portions of the movable plate 18 that are not sandwiched by the mounting jig 51. There is power. This frictional force is larger than the frictional force generated between the pair of sheet bodies 52a and 52b and the movable plate 18 held between them.

  On the other hand, the pair of sheet bodies 52a and 52b are formed so that the friction coefficient of the inner surfaces that overlap each other is larger than the friction coefficient of the outer surface opposite to the inner surface. For this reason, only the attachment jig 51 is pulled out from the partition member main body 5 while the movable plate 18 remains in the accommodating portion 29 of the partition member main body 5. Thereby, creation of the partition member 15 is completed.

Next, in a liquid such as ethylene glycol, water, or silicone oil, a liquid sealing step is performed in which the partition member 15 and the diaphragm 14 are assembled to the vibration isolator body 20 and the liquid is sealed in the liquid chamber 16.
If demonstrating it concretely, the vibration isolator main body 20 will be thrown into the pool which is not shown in figure where the liquid was stored. And it rocks | fluctuates suitably in a pool so that air may not remain in the 1st attachment member 11. FIG.

  Subsequently, the partition member 15 is introduced into the pool, and the partition member 15 is fitted inside the first mounting member 11. Further, the diaphragm 14 is put into the pool, and the diaphragm 14 is fitted to the end of the first mounting member 11 on the other side in the axial direction. Thereafter, the first mounting member 11 and the diaphragm 14 are caulked and fixed by bending the end on the other end side of the first mounting member 11 radially inward over the entire circumference. Then, the assembled anti-vibration device 10 is taken out from the pool, and the surface of the anti-vibration device 10 is washed to complete the manufacture of the anti-vibration device 10.

(Function)
In the vibration isolator 10 configured as described above, when a vibration having a minute amplitude is applied to the first mounting member 11 or the second mounting member 12, the movable plate 18 is connected to the inner surface 21 a of the first partition plate 21 and the first mounting member 11. This vibration is absorbed and attenuated by displacement or deformation between the inner surface 22a of the two partition plates 22.

  Further, vibration (for example, engine shake vibration) having an amplitude larger than the minute amplitude described above acts on the first mounting member 11 or the second mounting member 12, and the pressure of the liquid in the main liquid chamber 16a changes. Then, the movable plate 18 comes into contact with the inner surface 21a of the first partition plate 21 or the inner surface 22a of the second partition plate 22, and thereafter, the liquid is circulated between the main liquid chamber 16a and the sub liquid chamber 16b through the orifice passage 19. This absorbs and attenuates this vibration.

(effect)
Therefore, according to the above-described embodiment, the pair of sheet bodies 52a and 52b can be connected to the opening portion 28a of the partition member main body 5 by using the mounting jig 51 including the pair of sheet bodies 52a and 52b in the partition member creating step. , 28 b functions as a guide for drawing the movable plate 18 into the partition member main body 5, so that the movable plate 18 can be smoothly accommodated. For this reason, the thickness T1 of the outer peripheral edge 18a of the movable plate 18 is set to the opening height H1 of the opening 28 of the partition member body 5 and the distance H2 between the first partition plate 21 and the second partition plate 22. Even when it is set to be substantially the same or slightly thicker than the opening height H1 or the distance H2, that is, even when the play of the movable plate 18 is reduced as much as possible in the partition member body 5. Assembling workability in the partition member creating process can be improved.

  In addition, the pair of sheet bodies 52a and 52b are formed so that the friction coefficient of the inner surfaces overlapping each other is larger than the friction coefficient of the outer surface opposite to the inner surface. When 18 is accommodated, only the attachment jig 51 can be pulled out from the partition member body 5. For this reason, it becomes possible to arrange | position the movable plate 18 in the accommodating part 29 of the partition member main body 5 by easy operation | work.

  Further, when the mounting jig 51 is used, only one longitudinal end 51a of the movable plate 18 is sandwiched between the pair of sheet bodies 52a and 52b, and other portions of the movable plate 18 are exposed. For this reason, the frictional force generated between the exposed portion and the inner surface 21a of the first partition plate 21 and between the inner surface 22a of the second partition plate 22 is used to securely enter the partition member body 5. After accommodating the movable plate 18, only the mounting jig 51 can be pulled out from the partition member main body 5.

The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
That is, the specific materials, configurations, and the like given in the embodiment are merely examples, and can be changed as appropriate.
For example, in this embodiment, the case where the 2nd attachment member 12 and an engine were connected and the 1st attachment member 11 and a vehicle body were connected was demonstrated. However, the present invention is not limited to this, and the anti-vibration device 10 may be installed in the other vibration generating unit and vibration receiving unit.

  In the present embodiment, the partition member 15 and the diaphragm 14 are attached to the vibration isolator body 20 in which the first mounting member 11, the second mounting member 12, and the elastic body 13 are integrated in the pool in which the liquid is stored. The case where the liquid is sealed in the liquid chamber 16 has been described. However, the present invention is not limited to this, and the liquid chamber 16 may be filled with the liquid after the partition member 15 and the diaphragm 14 are assembled to the vibration isolator body 20 in the atmosphere. In this case, for example, an inlet for sealing the liquid in the liquid chamber 16 is formed in the first mounting member 11.

Furthermore, in this embodiment, the case where the orifice channel | path 19 was provided in the surrounding wall 27 of the partition member main body 5 along the central axis of the partition member main body 5 was demonstrated. However, the present invention is not limited to this. An orifice passage extending in the circumferential direction to the peripheral wall 27, a passage communicating the orifice passage and the main liquid chamber 16a, and a passage communicating the orifice passage and the sub liquid chamber 16b. It is possible to provide a long passage for the orifice passage 19.
Further, although the orifice passage 19 is provided in this embodiment, the orifice passage 19 may not be provided.

In the present embodiment, the outer peripheral edge portion 18a is formed thick on the entire periphery of the movable plate 18. However, for example, by embedding a resin or metal in the outer peripheral edge portion 18a, The rigidity may be increased.
Moreover, in this embodiment, although the movable plate 18 was formed in the substantially rectangular shape in planar view, the shape of the movable plate 18 is not limited to embodiment. For example, the movable plate 18 may be formed in a substantially circular shape in plan view, or may be formed in a substantially D shape in plan view by cutting out the circular shape.

DESCRIPTION OF SYMBOLS 5 ... Partition member main body 10 ... Vibration isolator 11 ... 1st attachment member (outer member) 12 ... 2nd attachment member (inner member) 13 ... Elastic body 15 ... Partition member 16 ... Liquid chamber 16a ... Main liquid chamber 16b ... Sub Liquid chamber 18 ... Movable plate 27 ... Peripheral walls 28a and 28b ... Opening 51 ... Mounting jig 51a ... One end 51b ... The other end 52a and 52b ... Sheet body

Claims (3)

A cylindrical outer member connected to any one of the vibration generating unit and the vibration receiving unit, and an inner member connected to the other;
An elastic body that elastically connects the outer member and the inner member;
A partition member that divides the liquid chamber of the outer member into a main liquid chamber on one side and a sub liquid chamber on the other side, the elastic body being part of the wall surface;
The partition member is
A partition member body in which a housing portion is formed;
A movable plate that is disposed in the housing and is displaced or deformed according to a pressure difference between the main liquid chamber and the sub liquid chamber;
A method for manufacturing a liquid-filled vibration isolator in which a pair of openings communicating with the housing portion are formed in portions facing each other in the radial direction of the outer peripheral surface of the partition member body,
A vibration isolator main body creating step of creating a vibration isolator main body in which the outer member and the inner member are connected by the elastic body;
A partition member creating step of creating the partition member by disposing a movable plate in the housing portion of the partition member body;
A partition member assembling step for assembling the partition member to the vibration isolator body;
Filling the liquid chamber of the outer member with a liquid,
The partition member creating step includes
Each sheet body on one end side of the mounting jig formed by superimposing a pair of sheet bodies is peeled off from each other, the movable plate is sandwiched between the pair of sheet bodies, and in this state, a pair of the partition member body The movable plate is arranged in the accommodating portion by inserting the other end of the mounting jig into one of the openings and pulling out the other end from the other of the pair of openings. A method of manufacturing an anti-vibration device.   The pair of sheet bodies are formed so that a friction coefficient of an inner surface where the pair of sheet bodies overlap each other is larger than a friction coefficient of an outer surface opposite to the inner surface. Method for manufacturing a vibration isolator.   In the partition member creating step, a part of the movable plate is sandwiched between the pair of sheet bodies, and a part other than the part is exposed, and the housing portion is used to store the part. The method for manufacturing a vibration isolator according to claim 1 or 2, wherein the movable plate is retracted.

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